Printer Friendly

Nitrosamines and margarine.

Nitrosamines and margarine

There have been reports in recent years that certain margarines were contaminated with trace levels of n-nitrosomorpholine (NMOR), a volatile nitrosamine that the National Toxicology Program classifies as a potential human carcinogen. But it was unclear whether the chemical was introduced by the testing procedures themselves, or by some commercial production technique. Now a Canadian study not only confirms the presence of NMOR in several margarines but also identifies its source--their paper wrappers.

Many of these wrappers contain between 5 and 73 nanograms of NMOR, the study shows. Though samples from the inner core of a stick of margarine showed no NMOR, the outer 1 centimeter could be contaminated with as much as 14 parts per billion NMOR, according to a report in the January-February JOURNAL OF FOOD SCIENCE by Nrisinha Sen and Philamder Baddoo of Health and Welfare Canada's health-protection branch in Ottawa.

Not all paper-wrapped margarines were contaminated. In fact, they point out, margarines in the most highly contaminated wrappers were never contaminated, because, coincidentally, a shiny plastic coating had been sprayed onto the inner surface of the waxed paper used in these cases, preventing the contaminant from reaching the margarine.
COPYRIGHT 1986 Science Service, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1986, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

Article Details
Printer friendly Cite/link Email Feedback
Publication:Science News
Date:Mar 1, 1986
Words:196
Previous Article:Changing your mind in a hurry.
Next Article:Season gingerly to retard rancidity.
Topics:


Related Articles
Curing bacon: fat on the fire.
Mold linked to esophageal cancer.
Needed: a cure for curing snuff.
Margarine meltdown.
A new safe thiuram, TBzTD.
Analysis of N-nitrosamines in compounds.
TBzTD and CBBS - alternative accelerators for reducing nitrosamine generation.
Garlic fights nitrosamine formation ... as do tomatoes and other produce.
BUTTER VS. MARGARINE.
Balloons, condoms release likely carcinogens.

Terms of use | Copyright © 2016 Farlex, Inc. | Feedback | For webmasters